Drawing or drafting mechanism for drawing or drafting cotton and other fibrous material



R D US B. WALTON MEcHANIsM Fo RAWING 0R D OTHER FIBRO MATERIAL 11 1926 2 Sheets-Smet 2 AZ iD W DRAFTI OTTON AN Filed Feb DRAWING 0R DRAFTING c Gct.

Patented Oct. 1K8, 1927.

UNITED s'Tatras A*o1-ificsp..

wILLIAIvIl BUCK wAL'roN, .or HALIFAX, nIIeLAiaD.

`O'IHnia rIBRoUs MATERIAL.-

A'pncafi'on med Febriary i1, islas, serial' N6.-s`7,725. and in Great ixritain May' 2, i925.

This invention relates toeelfiweighted top rollers of light weight employed in the draft;- ing system. of ring spinning and 'other' textile machines having similar. drawing rollers in which adjacent top rollers arefiexibly coninected Vto an intermediate or central `bossvto preyent lagging or stoppage lofthe rollers.

-According to this inventionl connecttwo or more of the rollers byrmeans ofanon-rigid coupling .such asl flexible cords. chains, cables, wires, links7 springs or thelike passed through the centreor attaohedto the ends or journals of the rollers.

The invention will befullydescribed with reference to the accompanying drawings.

Figs. 1 and 2 are longitudinal sectional plan and transverse sectionsof two rollers, connected together by a flexible cord.

Fig. 3 Vis a longitudinal sectional plan showing a line ofrollers.

Figs 4 and 5 Yare similar views to Figs. 1-

and 2 of a modification, j l Figs. 6 and 7 are'similar views of a further modiiication. l f

Figs.` 8 and 9 are similar views of a further modification. Figs. 10 kand 11 are simular views ther modifica-tion. j

Figs. .12 and 13 are similar views showing a. weighted roller connected to two light rollers. Y y V Figs. 14 and 15 arefsimilar views showing of a fui'- a modification of same.

Figs. 16A and 17 are similar views showing a further modification of same.

Fig. 18 is a transverse section, of the saddle showing the roller in workingposition.

Fig. 19 is a similar view with the roller in position for cleaning.

Fig. 2O is a front view of Fig. 18.

Fig. 21 is a plan of same. f

Fig. 22 is a side elevation of the loose saddle.

Fig. 23 is a plan of a further modification.

Fig. 24 is a transverse section of same.

The roller A may be of any suitable construction of self weighted roller and may` be either uncoveredvor covered with leather or the like in customary manner.

In the forms shown in Figs. 1 to 5 the rollers are of the ordinary size and length to fit between the cap bars of the roller stands (not shown) and are connected by a cord, or cable B, wire B2 or the like inserted in a longitudinal bore a drilled or formed `most zoninaiiient.` Should the rotation of lone of the rollersv Abestopped the other roller will continue to'rotate until theftwistor slack of the non-rigid coupling or B2 is takenl up and then impart its movement to the first roller. v f f E In the form shown in Figs. 12 to '17 and F igs. Aand 24 each light rollerwv is divided into two parts A2' with a `heavy o r weight-- ed roller D betweenthe two lightjrollers A1 A? to rest directly in contact with thebotto'm fiuted roller and receive rotation therefrom. The two ,short jor part rollersfA,1 v)A2 are: connected to theroller Di'by a flexible cord B or other non-rigid couplingB3 inserted in a longitudinallbore, din the heavy roller D and in a'longitudinal bore @1 a2 in the light rollers AH In the form shownin -Figsto l1 the rollers A3, A? are of similar construction and connected together by. non-rigid link or yhook couplings'B3 A(Figs. 10,l and 11) or fiat twistefl'wr@ B4 (Figs 6 and .7)A @te` :Sauer-. fue. berbar Bf (Figs.`l8 andgQ.) affixed to the .ends of the rollers so that t-he continued rotation of one will prevent the stoppageof the other.

A thin tube of tin or 'otherlm'aterial may lsurround theA flexiblecord,r chain, 'cable "or wire toL prevent collection y of. fluff i or' fly. thereon, yand .the central v veightedI roller D may be Veither plaim'fluted orcovered with leather.

In the forms shown in Figs. 12, 13 and 1d to 21 the heavy or weighted intermediate roller may be retained in position by a combined saddle and cap neb 6.1 the saddle e resting on the neck of the front top roller F and the cap neb'el'resting on the journals of the roller D a weight being applied by a weight hook G. The cap neb el may be adjustable in relation to the saddle `e the two part-s being secured by a screw or bolt. 'Ihe bearings on the cap nelo el are such as to engage and bear upon the journals of the roller D only and apply no weight whatever tothe adjacent light rollers A1, A2. In the case of' a front top roller with loose bosses f on a nonrotary spindle f1 the saddle and cap neb e1 may be attached to the spindle by soldering,

= rollers employed.

while eac-h light roller A1 is allowed to move, f independently of the other to and from the bottom fluted roller as the rovel or sliver passes between. The design of the saddle and cap nebmay vary according to theconstruction of t-he front top roller and the light In the form shown in Figs. 23 and 24 the heavy or weighted intermediate roller D is retained in position b a combined saddle and cap neb e3 the sad4 le e2 resting on abar or rod H running the full length of the Ymachine and carried by the frame and the cap neb e3 resting on the journals of the roller D. l

The saddle e2 is formed with aslot-e" through which a set screw e5 is screwed into the rod H a spring e6 on the screw applying pressure to the saddle e2. YThe rod H may be provided with a backing 7L against which the saddle e2 bears.

This arrangement can be employe-d where the littingofjthe saddle on the front roller is inconvenient or unsuitable.

lVhat I claim as my invention and desire to protect by Let-ters Patent is Y l. Self weighted top rollers for ring spin` ningand other machines comprising a plurality of rollers, a flexible non-rigid coupling connecting adjacent rollers together to allow adjacent rollers to move out of true alignment and to have a certain limited amount of rotary motion with respect to each other as required by the fibres passing under them.

2. Self weighted top rollers for ring spinning and other machines comprising a plurality of rollers, a flexible non-rigid coupling inserted in a bore in the rollers by which adjacent rollers are connected together to allow adjacent rollers to move out of true alignment and to have a `certain .limited amount of rotary motion with respect to Veach other as required by the libres passing under them.

3. A self Weighted top roller for ring spinf ning and othermachines constructed with a bore in the interior a flexiblenon-rigid coupling inserted into and extending at the ends of said roller by Which the roller is connected to adjacent rollers to allow each end of the roller to move out of alignment to a different extent with adjacent rollers and also .to have a certain limited. amount of rotary motion with; respect to that oflthe.

adjacentM rollers as required by the libres passing under it the roller and "adjacent rollers beingdriven through the flexible non rigid couplings.

j 4. Self Weighted top rollers Vforring spin- 'ning and other machines comprising a plurality of rollers, a cord connecting adjacent rollers together inserted in a bore in the rollers means for afixing the cord toeach roller to allow. adjacent rollers to move 1 out of true alignment and to have a certain limited amount of rotary lmotion `with re spect to each other as required by the fibresv passing under them. l j

5. A self weighted top roller for ring spin ning and other machines.constructed with a bore in the interior, a cord inserted into the bore and extending at the ends of Vsaid roller by which the roller is connected to adjacent rollers to allow each end ofthe roller to move out of alignment to a different extent with adjacent rollers and also tov have a certain amount of rotary motion with respect to that `WILLIAM Buon WALTON.` 

